Corvette Servo install for firmer shifts in Silverado Sierra and other GM vehiclesPLUS these extra parts that you will need, which nobody else offers in their kits. Fits all 4L60E / 4L65E / 4L70E transmissions from 1993 and up. We can NOT change it after you pay. Upgraded heavy duty chevy corvette 2-4 band servo kit th 700 700r4 4l60 4l60e this servo is easy to install if you have some basic mechanical skills and hand tools.